EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 6 students in a test are given below. Find the median.
7
6
10
12
10
7
(i)
7
(ii)
12
(iii)
8
1
2
(iv)
6
(v)
8
2
3
Question
2
2.
Find the median of all prime numbers between 10 and 60.
(i)
28
(ii)
32
(iii)
30
(iv)
31
(v)
33
Question
3
3.
Find the median of all the factors of 30.
(i)
9
2
(ii)
11
2
(iii)
13
2
(iv)
6
(v)
21
4
Question
4
4.
Find the median of first 5 whole numbers.
(i)
5
(ii)
1
(iii)
-1
(iv)
2
(v)
3
Question
5
5.
Find the median of all the factors of 30.
(i)
9
2
(ii)
21
4
(iii)
6
(iv)
13
2
(v)
11
2
Question
6
6.
Find the median of the first 20 odd numbers.
(i)
17
(ii)
20
(iii)
23
(iv)
21
(v)
19
Question
7
7.
Find the median of the first 10 even numbers.
(i)
11
(ii)
10
(iii)
14
(iv)
12
(v)
9
Question
8
8.
The marks obtained by 11 students in a test are given below. Find their median marks.
19
16
34
29
38
43
43
11
48
26
2
(i)
29
(ii)
26
(iii)
28
(iv)
30
(v)
31
Question
9
9.
Heights of 15 students (in cm) are given below. Find the median height.
147
151
157
149
142
168
170
166
146
174
154
127
134
160
164
(i)
152
cm
(ii)
153
cm
(iii)
155
cm
(iv)
154
cm
(v)
156
cm
Question
10
10.
Heights of 10 plants (in cm) are given below. Find the median height.
66
60
64
55
72
61
53
72
67
68
(i)
67
cm
(ii)
64
cm
(iii)
65
cm
(iv)
63
cm
(v)
66
cm
Question
11
11.
Ages of 15 students (in years) are given below. Find the median age.
10
14
11
11
10
11
11
12
13
13
10
13
13
11
12
(i)
9
years
(ii)
11
years
(iii)
12
years
(iv)
10
years
(v)
13
years
Question
12
12.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
10
12
5
6
15
12
11
15
12
6
11
8
(i)
13
mm
(ii)
9
mm
(iii)
12
mm
(iv)
10
mm
(v)
11
mm
Question
13
13.
Scores of 10 students are given below. Find the median score.
88
85
72
86
81
72
82
85
84
86
(i)
173
2
(ii)
169
2
(iii)
171
2
(iv)
85
Question
14
14.
Temperatures of 11 days (in °C) are given below. Find the median temperature.
29
33
25
26
25
26
33
33
34
29
31
(i)
30
°C
(ii)
28
°C
(iii)
27
°C
(iv)
29
°C
(v)
31
°C
Question
15
15.
Weights of 15 students (in kg) are given below. Find the median weight.
55
59
56
56
46
58
51
53
52
50
57
43
52
56
60
(i)
55
kg
(ii)
53
kg
(iii)
56
kg
(iv)
54
kg
(v)
57
kg
Question
16
16.
Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
389
389
494
313
434
316
368
342
369
355
338
479
(i)
₹
370.50
(ii)
₹
369.00
(iii)
₹
368.50
(iv)
₹
369.50
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
21
,
find the observations of the data
(i)
28
,
21
,
56
(ii)
18
,
21
,
32
(iii)
15
,
21
,
30
(iv)
14
,
21
,
28
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
18
and
12
respectively and
x
3
-
x
1
=
30
,
find
x
1
,
x
2
,
x
3
(i)
10
,
12
,
40
(ii)
8
,
12
,
38
(iii)
6
,
12
,
36
(iv)
12
,
12
,
72
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
33
and x +
40
and the median as
41
1
2
,
find the value of x.
(i)
5
(ii)
7
(iii)
4
(iv)
2
(v)
6
Assignment Key
1) (iii)
2) (iv)
3) (ii)
4) (iv)
5) (v)
6) (ii)
7) (i)
8) (i)
9) (iv)
10) (iii)
11) (ii)
12) (v)
13) (ii)
14) (iv)
15) (i)
16) (iii)
17) (iv)
18) (iii)
19) (i)
